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Pharmacology · Pharmacodynamics
Sample itemWhat is a partial agonist?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Drug with submaximal receptor activation
A partial agonist binds a receptor but produces less than the maximal response even when all available receptors are occupied.
Option by option
A. Enzyme inducer only
Enzyme induction is not a receptor efficacy definition.
B. Drug with no receptor binding
A drug with no receptor binding cannot be an agonist.
C. Drug with submaximal receptor activation (correct)
Correct: partial agonists activate receptors with limited efficacy.
D. Irreversible antagonist
Irreversible antagonists reduce available receptor function.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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